Positive solutions for a scalar differential equation with several delays

被引:6
作者
Berezansky, Leonid [2 ]
Braverman, Elena [1 ]
机构
[1] Univ Calgary, Dept Math & Stat, Calgary, AB T2N 1N4, Canada
[2] Ben Gurion Univ Negev, Dept Math, IL-84105 Beer Sheva, Israel
关键词
linear delay equations; several delays; positive solutions; nonoscillation;
D O I
10.1016/j.aml.2007.07.017
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For a scalar delay differential equation x(t) + Sigma(m)(k=1) a(k)(t)x(h(k)(t)) = 0, h(k)(t) <= t, we obtain new explicit conditions for the existence of a positive solution. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:636 / 640
页数:5
相关论文
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JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2007, 332 (01) :246-264
[4]   On exponential stability of linear differential equations with several delays [J].
Berezansky, Leonid ;
Braverman, Elena .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2006, 324 (02) :1336-1355
[5]  
Gy??ri I., 1991, OSCILLATION THEORY D